1.	Simplify 1 Simplify the following expression: $$ {\left(1 + -4\right)}^{2} - 2(-6)\left(-6 + -1\right) $$ Correct Answer $$ -75$$ or -75.0000

2.	Simplify 2 Simplify the following expression: $$ {\left(\frac{4}{-3}\right)}^{2} + \frac{3 + -5}{-3 - 5} $$ Correct Answer $$ \frac{73}{36}$$ or 2.02778

3.	Fractions 1 Simplify the following expression: $$ \frac{3}{4} - \frac{-5}{3} $$ Correct Answer $$ \frac{29}{12}$$ or 2.416666666666667

4.	Fractions 2 Simplify the following expression: $$ \frac{\frac{-4}{3}}{\frac{-5}{6}} $$ Correct Answer $$ \frac{8}{5}$$ or 1.5999999999999999

5.	Significant figures 1. Write the following to 2 significant figures: 123.85675 Correct Answer 120 or $$1.2\times10^{2}$$ 2. Write the following to 3 significant figures: 8.1106847 Correct Answer 8.11 or $$8.11\times10^{0}$$

6.	Standard Form 1. Write the following in standard form to 3 significant digits: 1.18363 Correct Answer $$1.18\times10^{0}$$ 2. Write the following in standard form to 2 significant digits: 0.0191703 Correct Answer $$1.9\times10^{-2}$$

7.	Significant figures 1. Write the following in preferred standard form to 2 significant digits: 0.0416 Correct Answer $$42\times10^{-3}$$ 2. Write the following in preferred standard form to 4 significant digits: 0.0000196193 Correct Answer $$19.62\times10^{-6}$$

8.	Simplify 2 Simplify the following expression: $$ \frac{\frac{-4}{-3}{(-1)}^{6}}{2\times3(-4)} $$ Correct Answer $$ \frac{-1}{18}$$ or -0.0555556

9.	Simplify 1 Simplify the following expression: $$ \left(-6(-2) - -3\times4\right)2\left(1 - 1\right) $$ Correct Answer $$ 0$$ or 0.0

10.	Simplify 2 Simplify the following expression: $$ 5(-5) + \frac{-2}{-4} - {\left(4 + -1\right)}^{2} $$ Correct Answer $$ \frac{-67}{2}$$ or -33.5000